<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0px;
            padding: 0px;
        }
        html,body{
            height: 100%;
        }
        div.bg{
            height: 100%;
            background-image: url(./images/images/background.jpg);
            animation: bg;
            animation-duration: 30s;
            animation-iteration-count: infinite;
            animation-timing-function: linear;
        }
        div.content{
            width: 1000px;
            height: 180px;
            
            position: absolute;
            left: 200px;
            bottom: 100px;
        }
        div.content li{
            list-style-type: none;
            width: 200px;
            height:180px;
            /* background-color: red; */
            margin-right: 50px;
            float: left;
            overflow: hidden;
        }
        div.content li div{
            width: 1600px;
            height: 180px;
            /* background-color: blue; */
            animation: roles;
            animation-duration: 1s;
            animation-timing-function: steps(8);
            animation-iteration-count: infinite;
        }
        div.content li div img{
            width: 1600px;
            height: 180px;
        }
        @keyframes roles{
            from{
                margin-left: 0px;
            }
            to{
                margin-left: -1600px;
            }
        }
        @keyframes bg{
            from{
                margin-left: -2000px;
            }
            to{ margin-left: 0px;}
        }
    </style>
</head>
<body>
    <div class="bg"></div>
    <div class="content">
       <li>
           <div>
               <img src="./images/images/wk.png" alt="">
           </div>
       </li>
       <li>
           <div>
               <img src="./images/images/bj.png" alt="">
           </div>
       </li>
       <li>
           <div>
               <img src="./images/images/tc.png" alt="">
           </div>
       </li>
       <li>
           <div>
               <img src="./images/images/sc.png" alt="">
           </div>
       </li>
    </div>
</body>
</html>